Table 1 Mean (± SD) for anthropometrical, hormone profile, physical fitness, general perceptual motor skill, soccer skill and soccer-specific labora tory test variables.
10y
12y
14y
Anthropometrics
Height (m)
1.44 (.06)
1.57 (.11)
1.68 (.08)
Weight (kg)
33.2 (4.0)
42.3 (8.4)
54.0 (7.8)
Fat (%)
9.4 (3.5)
9.7 (3.8)
7.8 (3.5)
Muscle Mass (kg)
15.9 (1.9)
20.8 (4.8)
28.0 (4.1)
Hormone Profile
Testosterone (nmol/l)
.15 (.52)
9.78 (7.05)
17.18 (5.72)
Physical Fitness
10m (s)
2.08 (.07)
2.02 (.05)
1.90 (.09)
Agility (s)
7.57 (.22)
7.38 (.17)
7.17 (.16)
CMJ (cm)
27.8 (4.2)
29.5 (3.4)
35.8 (4.2)
General Perceptual Motor Skills
PAT (s)
.36 (.07)
.33 (.06)
.32 (.07)
EHF (times/30s)
28.8 (3.0)
34.2 (2.5)
36.5 ± 3.3
Soccer Skills
Dribbling (s)
29.4 (1.7)
29.0 (1.8)
26.5 (1.3)
Passing (s)
42.2 (2.8)
39.4 (2.9)
36.6 (2.4)
∑ Skill (s)
71.6 (4.1)
68.4 (4.5)
63.1 (3.5)
Soccer-Specific Laboratory Test
Time (s)
5.62 (.30)
5.54 (.30)
5.28 (.39)
Anticipation (s)
.17 (.04)
.15 (.04)
.09 (.04)
Dribbling (s)
2.84 (.25)
2.84 (.20)
2.66 (.19)
Reaction (s)
.36 (.07)
.33 (.06)
.29 (.07)
Aiming (s)
1.43 (.26)
1.53 (.16)
1.61 (.33)
Passing (s)
.82 (.10)
.69 (.09)
.62 (.10)
Accuracy (penalty pts.)
1.75 (.58)
1.47 (.32)
1.32 (.50)
CMJ = counter movement jump, PAT = peripheral awareness, EHF = Eye-Hand-Foot Coordination